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International Journal of Electrical and Electronics Research ISSN 2348-6988 (online) Vol. 10, Issue 2, pp: (17-26), Month: April - June 2022, Available at: www.researchpublish.com III. METHODS
The methods used for the development of the new system are empirical data collection and analysis, development of the SVC, implementation of the SVC with simulink and then integration of the SVC on the selected bus with instability.
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Empirical Data Collection
The study considered the Nigerian 30 Bus, 33KV transmission network as the testbed and used for data collection via the transmission Company of Nigeria (TCN) and analysis with Newton Raphson load flow algorithm to identify bus with poor voltage profile. The pseudocodia of the load flow analysis was presented as (Ikule et al., 2019; Abdulkarem et al., 2014; Afolabi et al., 2015);
PSEUDO CODE OF NEWTON RAPHSON
1. Start
2. Read the phasor parameters values of the busses 3. Read the self admittance for each bus
4. Read mutual admittance between busses
5. Initialize the Y-Bus matrix
6. Compute the driving point admittance using series and shunt admittance 7. Compute the transfer admittance using negative admittance between two uses i and j
8. Check for end bus count
9. Formulate the Y- Bus admittance matrix of the network
10.Assume the initial value of bus magnitude |Vi| and the phase angle ϴ equal to slack quantities.
11.Initialize |Vi| = 1.00pu and ϴ = 0rad. 12.Initialize count for iteration t =0
13. Compute the real and reactive power for each bus 14.Compute the bus error 15.If
16.Reactive power is within limit = true 17.Then
18.Compute change in real power only. 19.Else if
20.Equate the violated limit as reactive power and treat as PQ Bus.
21.Compute the Jacobian matrix elements using estimated |Vi| and ϴ in step 2 22.Obtain the change of ∆|Vi| and ∆ϴ with changes in real and reactive power components of the bus voltage
23. Update ∆|Vi| and ∆ϴ at all loads
24.Next iteration with updated ∆|Vi| and ∆ϴ values
25.Do
26.Until (scheduled error for all busses are within the specified error tolerance
27. (Where is the tolerance level for the load bus) compute the line flows and power at the slack bus
28.End
